Rochester
Rochester is significantly wealthier than the US average, with a median household income of $117,118. Population has grown 30% since 2000. 48% of adults hold a bachelor's degree or higher. Median home value has more than doubled since 2000, reaching $238,900. Poverty is rare here, at 2.5% of residents. It ranks in the top 5% of US cities for household income.
Population & growth
PEP 2025 EST:4,093 residents (Census Bureau Vintage 2025, released March 2026)
Income & economy
Housing
Race & ethnicity
Education
Commute & transportation
Work & employment
People & community
Places similar to Rochester
Compare Rochester to nearby cities
How many people live in Rochester, Illinois?
Rochester, Illinois has about 3,766 residents according to the 2024 American Community Survey.
What is the median household income in Rochester, Illinois?
The typical household in Rochester, Illinois earns about $117,118 a year. Half of households make more than that, and half make less.
Is Rochester, Illinois expensive?
In Rochester, Illinois, the median home is worth about $238,900, and the typical rent is about $1,288 a month.
How educated are people in Rochester, Illinois?
About 47.9% of adults age 25 and over in Rochester, Illinois hold a bachelor's degree or higher.
What is the poverty rate in Rochester, Illinois?
About 2.5% of people in Rochester, Illinois live below the federal poverty line.
Has Rochester, Illinois grown since 1990?
Yes, Rochester, Illinois has grown since 1990. The population has added about 1,059 residents, a change of about 39 percent over that period.
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DATA: US CENSUS BUREAU ACS 5-YEAR + DECENNIAL CENSUS · UPDATED 2024